2004-2005 Kawasaki STX-15F Jet Ski Factory Service Manual., Page 106Get this manual
3-58 FUEL SYSTEM (DFI) Oil Temperature Sensor (Service CodeCharacter-73OILC or 73OILt)
r Tfuthn tohuetpignivtioolnagwiitschuOofFt.he specified, check the ECU Ie ut for its ground, and power supply (see ECU Power Supply Inspection)If the ground and power supply are good, replace the ECUI the the (e the wiring is open, the voltage is about V), check the wiring (see next iagram)If the wiring is good, check the oil temperature sensor resistanceRemove the needle adapter set, and apply silicone sealant to the seals of the connector for waterproofingS (K on ct s